diff --git a/HISTORY.rst b/HISTORY.rst
index 82197e67..430fff87 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -1,7 +1,7 @@
 Release History
 ===============
 
-2.1.2 (2015-??-??)
+2.2.0 (2015-??-??)
 ------------------
 
 * Allow to specify library compatibility with the all platforms/frameworks using
diff --git a/platformio/__init__.py b/platformio/__init__.py
index 6923cb2b..b0fff13e 100644
--- a/platformio/__init__.py
+++ b/platformio/__init__.py
@@ -1,7 +1,7 @@
 # Copyright (C) Ivan Kravets <me@ikravets.com>
 # See LICENSE for details.
 
-VERSION = (2, 1, "2.dev0")
+VERSION = (2, 2, "0.dev0")
 __version__ = ".".join([str(s) for s in VERSION])
 
 __title__ = "platformio"